|Hair||, Waist Length+, White|
|Visual novels||Main character - Ginga Ojou-sama Densetsu Yuna|
|Voiced by||Mizutani Yuuko|
Her real name is "Culture Computer No.3". She first appears in Galaxy Fraulein Yuna 2: Eternal Princess as a captain of an extremely powerful battleship, the titular "Eternal Princess". Scattered throughout the galaxy, hidden beacons are placed throughout every planet left eons ago, which monitors the level of conflict in the area. Whenever there is a strong level of conflict, such as interplanetary warfare, the beacon signals the Eternal Princess to go and stop the wars from reaching galactic scale by destroying the planets that are involved with its main cannon.